双语例句原声例句权威例句
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The bigger the animal is, the lower its surface-to-volume ratio; for every ounce of body mass, there is proportionately less surface through which heat can escape.
动物体型越大，其体表体积比越低；躯体每增加一盎司的重量，所能散发热量的表面就成比例减少。
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The convection zone reaches up to the sun's surface, and makes up 66 percent of the sun's volume but only a little more than 2 percent of its mass.
对流区的范围直达太阳表面，占有太阳体积的66%，但只有太阳质量的2%多一点儿。
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And if you have rough candy with a high ratio of surface area to volume, then there's more places for the bubbles to go.
如果你粗燥的硬糖具有很大的表面积，那么泡泡们就有更多的地方可以去了。
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So if we want to talk about the volume of that, we just talk about the surface area, which is 4 pi r squared, and we multiply that by the thickness d r.
如果我们要讨论它的体积，我们要用的是表面面积，也就是４πｒ的平方，乘以厚度ｄｒ
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